baber/WOPTO huggingface dataset:
Patent GB-1361138-A (GB)
Title: Air depolarisation primary cell and method of assembly thereof
IPC: H01M12/06
Filed: 1972-10-23
Abstract: 1361138 Zinc-air cell SOC DES ACCUMULATEURS FIXES ET DE TRACTION 23 Oct 1972 [29 Oct 1971] 48817/72 Heading H1B An air depolarization primary cell comprises a casing containing, in superposed layers, a positive electrode, an immobile alkaline electrolyte and a zinc based negative electrode, wherein the casing is sealed in a liquid-tight manner at one end by the positive electrode and in a fluid-tight manner at the opposite end by a cover carrying the negative terminal, and a space for expansion of the negative electrode is provided between the negative electrode and the cover. In an embodiment, a casing 1 of polystyrene or polymethacrylate having holes 2 is provided with an adhesive layer 5 of polystyrene in trichloroethylene, a collector grid 4 with a connecting wire 16, and a positive electrode 3 comprising a porous hydrophobic plate of active carbon and polystyrene. A packing 6 of epoxy resin is poured around the edge of plate 3, allowed to set and a layer 7 of electrolyte comprising potassium hydroxide solution and starch is poured in at less than 0 C. When the layer 7 is heated it gels. The negative electrode 8 is pulverent zinc in a gel. An electrical connection is made to the electrode 8 by a wire 11 sealed in epoxy resin 14 and joined to grid 13. The cover 9 is made of polystyrene and the space for expansion of electrode 8 is occupied by polyethylene foam 15. In other embodiments, the expansion space for the electrode 8 is empty and a plate (35) rests on top of the electrode 8. The plate moves upward against a spring (36, Fig. 2, not shown) or the friction of the plate on the side of the casing (21) and a shaft (32) surrounding an electrical connection (31, Fig. 3, not shown). In one of these embodiments the cell is completely sealed-off to the atmosphere before use but may be activated by breaking off a projection (27, Fig. 2) adjacent the positive terminal. A removable plug may be provided in place of the projection. The cells are stored in sealed polyethylene sheets.
Patent GB-1077189-A (GB)
Title: Improvements in or relating to seats
IPC: A47C7/22
Filed: 1964-12-02
Abstract: 1,077,189. Spring surfaces. VOLVO A.B. Dec. 2, 1964 [July 14, 1964], No. 48969/64. Heading A4M. A backrest consists of straps 5 of an elastic material such as rubber, the tension on the straps in the region of the small of the back of a sitting person being increased or decreased by curved bars 6 adjustably mounted near the side legs 3 of a frame 1 of the backrest and having one or more elastic straps 8 transversely extending between them. At least one of the bars 6 is adjustably connected to a leg 3 by a screw 9. In a modification, Fig. 2 (not shown) a sheet (10) of elastic material replaces straps 5, 8, the bars 6 being attached to lateral edges of sheet 10.
Patent GB-1394429-A (GB)
Title: Pipe bending devices
IPC: B21D7/06
Filed: 1971-10-22
Abstract: 1394429 Bending pipes LA LE BRETON 17 Jan 1973 [22 Oct 1971] 49306/71 Addition to 1126187 Heading B3E A pipe bending device as in the parent Specification 1,126,187 is provided with a latch mechanism comprising a lever pivotally mounted on the body, and having one end extending out of the body and the other end supporting a pawl spring loaded towards engagement with the ratchet, the lever being engageable with the manually operable means so as to be held in a ratchet releasing position. In the Fig. the anvil (not shown) is mountable on an end 11 of the ratchet 10. The manually operable means is a lever 13 pivoted to the body at 14 and mounting a pawl 15 engaged with the ratchet 10 by spring 16 except when the lever 13 is released, when the pawl is held disengaged by a stop 17. Return of the ratchet is normally prevented by a spring biased pawl 18 pivoted on a lever 19 mounted on the body at 20 and biased to the engaging position shown by spring 23. Near pivot 14, lever 13 is slotted so that the body of lever 19 can enter lever 13, and lugs 24 can engage either outside or within an undercut portion of lever 13. To release the ratchet at the end of the clockwise bending stroke of lever 13, lever 19 is pivoted clockwise, and can then be held in that position by release of lever 13 to engage lugs 24. When lever 13 is next operated, it will release lever 19 so that the ratchet becomes operative.
Patent GB-1042719-A (GB)
Title: Process for the preparation of macromolecular compounds containing sulpho groups
IPC: C08B11/10
Filed: 1964-12-04
Abstract: In a process for the preparation of high macromolecular compounds containing sulpho groups a macromolecular compound containing carboxyl groups in salt form is reacted with a cyclic sulphonic acid ester.  Specified macromolecular compounds are alginic acid, cellulose-ether carboxylic acids and polymers of ethylenically unsaturated acids, e.g. acrylic, methacrylic, maleic and itaconic acids, and the salts thereof may be derived from alkali metal or alkaline earth metal hydroxides and carbonates, ammonia or organic nitrogen bases. Specified cyclic sulphonic acid esters are the esters of 1-hydroxybutane-3-sulphonic acid, 1-hydroxybutane -4-sulphonic acid and 1-hydroxypropane -3-sulphonic acid.  The reaction is preferably effected in water or mixture thereof with organic solvents, e.g. dimethylformamide, alcohols and ketones.  The products may be used as thickening, emulsifying dispersing and flocculating agents.  Examples describe the reaction of the sodium salts of (1) polyacrylic acid, (2) polymethacrylic acid, and (3, 6, 7 and 8) methacrylic acid/methyl methacrylate copolymers, and (4) the ammonium salt, and (5) the triethanolamine salt of methacrylic acid/ methyl methacrylate copolymers with 1,3propane sultone.
Patent GB-1491819-A (GB)
Title: Low calorie food product
IPC: A23G3/36
Filed: 1975-12-02
Abstract: 1491819 Low calorie confectionery BATTELLE MEMORIAL INSTITUTE 2 Dec 1975 [9 Dec 1974] 49479/75 Heading A2B A low calorie confection comprises at least one layer of marchmallow and at least one layer of a homogeneous paste containing 20-30% by weight of purified alpha cellulose powder of foodstuff quality, the calorific value of this paste being at the most 300 calories per 100g. Preferably the paste may also contain 3-5% of proteins, 3-10% of lipids, 45- 60% of sugars and 10 to 15% of water and the confection may additionally have an edible coating e.g. chocolate.
Patent GB-1010280-A (GB)
Title: Apparatus for mixing and dispensing metered quantities of lubricating oil with petrol
Inventor: LAVER STANLEY VICTOR
IPC: B67D7/74
Filed: 1963-12-18
Abstract: 1,010,280. Dispensing fuel. GILBERT & BARKER MANUFACTURING CO. (AUSTRALIA) PTY. Ltd. Dec. 18, 1963, No. 50017/63. Heading A4T. [Also in Division B1] Apparatus mixing metered quantities of oil with petrol, and which may be attached to an electric type petrol dispenser, has an oil pump 4 driven from a petrol pump 3, the petrol metering shaft driving a cam 39 which alternately opens compressed air valves 43, 44 (Fig. 2) to shuttle a changeover valve 23 whereby the pumped oil is discharged via line 28, valve 65 and line 11 to nozzle 12 from one side or the other of a metering piston 31 whose stroke is adjustable by screw 15, 38. Removal of nozzle 12 allows lever 49 to operate the air supply valve 41 whereby diaphragm 55 raises rod 60 to close pump motor switch 61 and valve 65 is raised so that pump oil passes to the nozzle and not to reservoir 17. Oil pressure also acts on diaphragm 54 so that loss of pressure opens switch 61, and excess pumped oil goes to reservoir via lines 24, 25. Should the reservoir oil level go below a certain value, float 62 and crank 64 raise lever 49 to exhaust air through valve 52. The oil nozzle 12 (Fig. 1) is flow connected to petrol nozzle 8 so that mixing in a set proportion occurs as petrol is dispensed. By leaving nozzle 12 beneath lever 49, air pressure is exhausted so that valve 65 directs oil to reservoir 17 but rod 60 closes switch 61 to permit the pumping of petrol alone.
Patent GB-1249879-A (GB)
Title: Improvements in or relating to hydraulic circuit systems for stressing presses
Inventor: VELIKOV GOSPODIN PENEV
IPC: E04G21/12
Filed: 1968-10-22
Abstract: 1,249,879. Wire stresses. DSO STOMANOBETONNI KONSTRUKZII I IZDELIYA. 22 Oct., 1968 [23 Oct., 1967], No. 50177/68. Heading F2G. An hydraulic circuit system for stressing presses operable to pretension and stress a wire 24 in the production of prestressed reinforced concrete constructions comprises three fluid actuated piston and cylinder assemblies 18, 22; 19, 23; 20, 21 in co-axial alignment and arranged so that an end portion of a wire to be pretensioned can be passed therethrough. A fist 18, 22 of the assemblies is adapted on actuation to clamp therein the wire 24 to be tensioned and a second 19, 23 of the assemblies is adapted on actuation to move the fist assembly in the wire tensioning direction after the wire has been clamped in the fist assembly. The third 20, 21 of the assemblies is adapted on actuation to retain the tensioned wire under tension. The system further comprises an hydraulic fluid pump 2 preferably driven by a motor 1, a double-acting fluid distributor 7 and two separate hydraulic circuits each incorporating a double-acting valve 12, 13. The first of the circuits connects the distributor 7 and the first and second assemblies and the second of the circuits connects the distributor and the second and third assemblies with the first and third assemblies both being connected directly to the respective circuits upstream of the respective valves. The arrangement is such that in a first position of the distributor the delivery side of the pump is connected to the first assembly and to one actuating end of the second assembly through the distributor and the first hydraulic circuit, and in a second position of the distributor the delivery side of the pump is connected to the third assembly and the opposite actuating end of the second assembly through the distributor and the second hydraulic circuit. The double-acting valves are both adjusted to change the direction of flow of hydraulic fluid whenever the pressure in the respective circuit attains a predetermined valve.
Patent GB-1490610-A (GB)
Title: Ship adapted for the transport of heavy cargo
IPC: B63B35/00
Filed: 1975-12-08
Abstract: 1490610 Loading ships WINSEMIUS A 8 Dec 1975 [16 Dec 1974] 50301/75 Heading B8E [Also in Division B7] To facilitate the carriage and loading of heavy cargo on the weather deck 20 of a ship, a pair of longitudinally extending beams 3 are arranged one on either side of hatches 4 with their upper surfaces above the tops of the hatch coamings and a plurality of transverse beams 5 are releasedly secured to the longitudinal beams 3 to support the heavy cargo. For loading or unloading the cargo, further beams (Figs. 2 and 3, not shown) on a loading/unloading installation are connected to the adjacent ends of the beams 5, the ship is ballasted so that the longitudinal beam 3 nearest the installation is below the transverse beams 5 (whose other ends are secured to the other longitudinal beam 5 on the ship) and cannot contact them through the ship moving during the loading/unloading operations. The cargo is then moved between the ship and the installation on one or more carriages running on the transverse beams 5 and the further beams.
Patent GB-1461359-A (GB)
Title: Liquid crystal electro-optical device
IPC: G02F1/1337
Filed: 1974-11-20
Abstract: 1461359 Controlling light DAI NIPPON. TORYO KK 20 Nov 1974 [29 June 1974 31 July 1974] 50334/74 Heading G2F In a display device comprising a layer of 'twisted' nematic liquid crystal material with positive dielectric anisotropy disposed between two electrode bearing plates, the surface of each plate adjacent the liquid crystal layer is covered with a poly-pxylylene coating which is uni-directionally rubbed to produce the required homogeneous alignment of adjacent nematic molecules. The poly-pxylylene may be unsubstituted or each aromatic nucleus may be substituted with a halogen, alkyl, acyloxy or alkoxy group. The coating may be formed by the Wurtz-Filtig or Friedel-Craft reactions, by Hofmann decomposition, or as particularly described, by thermal decomposition and polymerization. For example a p-xylene and steam are heated to 950C, and quenched in benzene or toluene to give di-p-xylylene. Heating this at reduced pressure gives a p-xylylene which polmerizes on contact with the electrode surface. For greater adherence, e.g. on a glass plate with In 2 O 3  electrodes, an intermediate layer of epoxy or silane is first provided. A high temperature epoxy is used to space and seal the plates.
Patent GB-1507401-A (GB)
Title: Apparatus for discharging hot molten material from a pressure vessel
IPC: C21B3/06
Filed: 1975-12-11
Abstract: 1507401 Discharging slag DR C OTTO & CO GmbH 11 Dec 1975 [12 Dec 1974] 50929/75 Heading F4B Apparatus for discharging hot molten material, e.g. liquid slag from the bottom 21 of a slag bath generator, comprises a collecting vessel 23 containing liquid coolant for granulating the liquid slag received from the generator, a discharge vessel 25 filled with coolant and disposed beneath and communicating with the bottom of the collecting vessel 23 through a first gate valve 24, a float device 29, 36 controlling coolant supply and discharge means 10 and 11 to maintain coolant at a predetermined level 37 within the collecting vessel 23, a sensing device 27 for registering the accumulation of granulated slag in the collecting vessel 23 to a predetermined height 38 and opening the valve 24 when such height is registered to allow passage of granulated slag into said discharge vessel 25, pressure control means 15, 16, 17, 18 enabling the pressure in the discharge vessel to be brought to the pressure of the collecting vessel or to ambient pressure, and a second gate valve 26 at the bottom of the discharge vessel through which the contents of said vessel 25 may be withdrawn. In use when granulated slag has accumulated in vessel 23 to the predetermined level 38 and pressure equalization between the two vessels 23 and 25 has been established by opening valve 16, the gate valve 24 is opened and the slag passes by gravity alone into the vessel 25. Valve 24 is then closed and the pressure in vessel 25 is reduced to atmospheric pressure by opening vent valve 15; gate valve 26 is opened and the granulated slag discharged into a collector 20 provided with coolant discharge means 32 and a scraper 33. A thermal switch 28 operates to increase the rate of feed of coolant to the collecting vessel 23 when a predetermined temperature is exceeded.
Patent GB-1478270-A (GB)
Title: Moulded plastic battery container
IPC: H01M50/112
Filed: 1975-12-12
Abstract: 1478270 Injection moulding battery cases GOULD Inc 12 Dec 1975 [20 Feb 1975] 51051/75 Heading B5A [Also in Division H1] A mould for a plastics battery container (see Division H1) having integral partitions is formed with ribs 22 which form stacking grooves in the outside of the container bottom. Nozzles 30 of feed gates 19 project beyond the ribs 22. The cases are recessed at 31 adjacent the nozzles. The container may be tapered from top to bottom.
Patent GB-1222608-A (GB)
Title: A combined axially retractable landing gear and shock strut
IPC: B64C25/60
Filed: 1968-10-28
Abstract: 1,222,608. Aircraft undercarriage shockabsorber. LOCKHEED AIRCRAFT CORP. 28 Oct., 1968 [2 Nov., 1967], No. 51109/68. Heading B7G. An aircraft landing gear strut which may act as a shock absorber and may be retracted axially comprises a first cylinder 11, having a closed end 15 adapted for attachment to an aircraft, and an open end 13 and a land 21 both forming bearings for a hollow piston 37 which carries at its lower end a landing wheel 47. A further cylinder 25, apertured at 27 is secured at its upper end to end 15 of cylinder 11 and extends downwardly through a piston head 39, provided with bleed grooves 41, secured to the upper end of piston 37, the lower end of cylinder 25 being formed a bearing flange 32 provided with a metering orifice 31. Piston 37 intermediate its ends is formed with an inner diaphragm, having an orifice 43, and an outer circumferential projection 63 intended as an abutment for land 21 and an annular retracting piston 61. An air valve 33 is located at the upper closed end of cylinder 11, and pressure ports 69, 65 in cylinder 11 are connected to the aircraft's hydraulic system. A floating piston 51 separates the interior of the landing gear into a primary airoil chamber 53 and a secondary air chamber 55 which is at a higher pressure than the primary chamber. To absorb shocks, the piston 37 moves upward in the first pressure chamber 53, compressing the air and driving the oil via upper holes 27 down the inside of the inner cylinder 25 through holes 29 and 31 to a rebound chamber 44 and a reservoir 57 inside the piston, and, if a high reaction force is necessary through an orifice 43 to force piston 51 to compress the air in the second pressure chamber 55. The bleed grooves 41 in the head 39 are provided to absorb and dampen some of the rebound energy of the shock-absorbing stroke. Upon landing the initial force of the touchdown results in an immediate retraction of the strut since the only force opposing this is the low pressure chamber air pressure while in an excessively hard landing the high pressure chamber also comes into operation. When it is desired to raise the undercarriage, pressurized fluid from the aircraft hydraulic system is admitted through a port 65 and forces up retracting piston 61 till it engages with shoulders 63 on piston 37 and excess fluid above the piston is expelled through port 69. The extension of the landing gear is accomplished by reversing the process and, by valving ports 65 and 69, the piston may be locked in any intermediate position.  In a modification, Fig. 2 (not shown), the upper bearing support 21 is dispensed with and the upper portion of the piston 37 bears directly against a retracting piston (72) which is spaced from the lower bearing support (17) by a spacer sleeve (74). A single port (76) is located at the upper end of the retracting chamber (78).
Patent GB-1194779-A (GB)
Title: Improvements in or relating to a Caliper Rule
Inventor: MEYER HANS
IPC: G01B3/00
Filed: 1968-10-29
Abstract: 1, 194,779. Calliper gauges. H. MEYER. Oct. 29, 1968 [Dec. 12, 1967], No. 51131/68. Heading G1M. A beam consisting of a bar 1, a jaw 30, and an end-piece 31 is fixed to plates 2 which support a scale bar 3, a rear bar 33, and a slider mounting mating jaws, the slider comprising plate parts 17 15, 16, 18 and intermediate parts 4, 5 and 32 all held together by screws 9. The slider may be locked in position by turning a screw 8 to press down a resilient wedge 6, and a pinion 20 meshing with a toothed rack 1a carries a toothed wheel 22 on its axle 21 and drives a further pinion 24 and a numbered disc 23 covered by a windowed disc 19. The rack 1a is protected by a sealing strip 10 of steel or plastics that passes around wheels 11 journalled between the parts of the beam and over curved guides 4b and 5a, the strip being held in the slider between eccentric parts 14 pressing against a pin 13.
Patent GB-1479336-A (GB)
Title: Protective device for a tool
IPC: B21F11/00
Filed: 1974-11-27
Abstract: 1479336 Machinery guards THOMAS & BETTS CORP 27 Nov 1974 [28 Nov 1973] 51376/74 Heading F2J [Also in Division B3] A safety shield for protecting an operator's fingers &c. from the die members 40, 42 of a manually or, as shown, hydraulically or pneumatically power operated cutting and crimping tool for electrical cables 62 &c., comprises a U-shaped guard 22 (Figs. 2 and 3, not shown) which is pivoted at 26 on a fixed post 28, of the tool frame 30, and constantly spring biased at 32 (Fig. 9, not shown) towards its closed i.e. guarding position, the guard 22 having flanged edge portions 54, 56 whereby insertion of a workpiece 62 into the tool initially engages the guard via one or other flanged edges 54 or 56 to raise the guard 22 to expose the work zone 38 so that the workpiece 62 may be advanced therein between the die members 40, 42, the guard 22 being maintained in contact with the workpiece (Fig. 4) by its spring bias to constantly restrict access to the die members 40, 42. The guard 22 has an arcuate slot 64 which limits the fully closed and opened positions of the guard 22 by engagement with a fixed pin 66. As shown the cutting and crimping tool carries the piston operated movable die 40 in its frame 30 and, via the fixed post 28 and a further pivoted post 68, carries the stationary die 42, the stationary die 42 being releasable from the pin 72 on post 68 and outwardly pivoted (Fig. 5) whereby the tool may be positioned for cutting and/or crimping operations at any point along an electrical cable 62. Similar alternative embodiments of the combined guard and tool are separately illustrated in Fig. 6, Fig. 7 and Figs. 8 and 10.
Patent GB-1288396-A (GB)
IPC: C07D275/06
Filed: 1969-10-20
Abstract: 1288396 Disperse azo dyestuffs TOMS RIVER CHEMICAL CORP 20 Oct 1969 [4 Nov 1968] 51377/69 Heading C4P [Also in Division C2] Dyestuffs of the formula (wherein R is the residue of a diazotizable amine free from water-solubilizing groups, X is H, C 1-4  alkyl, C 1-4  alkoxy, or halogen, Y is H, C 1-4  alkyl, alkoxy, halogen or acylamino; R 2  is H or optionally substituted alkyl, R 3  is -(CH 2 ) n - where n is 1, 2, 3 or 4; and R 4  is H, NO 2 , halogen, phenyl or fused-on benzo) are prepared by conventional diazotization and coupling. Examples of the diazotizable amine are substituted anilines and substituted and unsubstituted 2-aminobenzothiazoles. The dyestuffs are especially suitable for dyeing synthetic fibres, particularly those from aromatic polyesters suchas polyethylene terephthalate.
Patent GB-1450257-A (GB)
Title: Matched impedance printed circuit board connector
IPC: H01R12/50
Filed: 1974-11-28
Abstract: 1450257 Matching impedances ITT INDUSTRIES Inc 28 Nov 1974 [30 Nov 1973] 51575/74 Heading H1W [Also in Division H2] A matched impedance edge connector comprises an insulating housing 64, bifurcated resilient contacts 18 and a mounting board 12. The mounting board comprises a signal trace layer 85 and ground plane 84, connected via plated through holes to respective contacts and also is a ground bus 94 extending longitudinally of the housing. Alternate contacts 18 are connected to the ground plane and signal layer (Fig. 4 not shown).
Patent GB-1319259-A (GB)
Title: Washing machines
IPC: D06F39/00
Filed: 1970-11-02
Abstract: 1319259 Slip clutches ETABS CARPANO & PONS 2 Nov 1970 [7 Nov 1969] 51986/70 Heading F2C [Also in Division H1] An overload clutch in an automatic washing machine programmer (see Division H1) to enable an electric motor to continue running when cams 13, 14, normally driven thereby, are mechanically locked, comprises a V-shaped spring blade 17 located in a notch in a wall 18 upstanding from a gear 16 which is driven by the motor and mounted on a shaft 12. Cams 13, 14 are loosely carried on shaft 12 and normally driven by engagement of the nose of spring 17 with an internal projection 21 of member 1 which is secured to the cams 13, 14 by lugs 20. When the cams 13, 14 are locked by a pawl entering a recess 4 in member 1 the spring 17 is urged inwardly to straddle a collar on shaft 12 and its nose rides over projection 21 allowing the shaft 12 to continue its rotation.
Patent GB-1163327-A (GB)
Title: Washing Machine
IPC: D06F37/24
Filed: 1966-11-22
Abstract: 1,163,327. Washing-machines. GENERAL STEEL WARES Ltd. 22 Nov., 1966 [29 Dec., 1965], No. 52274/66. Heading D1A. The washing tub 10 and motor assembly 36, 38 of a washing machine are supported on flexible rods 90 rigidly fixed to the base of the machine and resiliently mounted in rubber blocks at the end fastened to the tub. Weights 104 are secured to the tub to reduce unbalance during spin drying. Additional damping is produced by damping platforms 106 (Fig. 5) having a bifurcated spring 118 the ends of which are fastened to the motor support structure 34 and the bight of which acts on an asbestos damping disc 112.